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Acquisitions (Narrative) (Details) $ in Thousands		12 Months Ended
	Jan. 31, 2017 USD ($)	Dec. 31, 2019 business	Dec. 31, 2018 business
Business Acquisition [Line Items]
Number of businesses acquired | business		0	0
Vertex-Global Holding B.V.
Business Acquisition [Line Items]
Acquired ownership percentage	100.00%
Value of voting rights acquired | $	$ 37,562

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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The number of businesses acquired by the entity during the period.

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